Sand-tester ptjmp



Patented Dec. 18, 1928.

AUNITED STATES GEORGE F. LE BUS, OF ELECTRA, TEXAS.

SAND-TESTER PUMP.

Application filed April 27, 1927. Serial No. 187,043.`

This invention relates to a sand testei pump.

An object of the invention is the provision of a device in which no rods or lines are employed for removing sand for testing and in which the drill pipe is substituted for the usual rods employed inside the tubing to operate the pump which is accomplished by raising and lowering the pipe or tubing,

thereby causing fluid to How through the tub ing of drill pipe into the. tanks.

Another object of the invention is the piovision of a pump which will operate in an eiicient manner while cutting off the muddy water from above, thus allowing the pumping operation to maintain a suction directly on the sand, thereby eliminating the expensive method of setting pipes and hailing.

A still further object of the invention is the provision of a pump which is adapted to maintain a suicient suction which removes the mud and water from the sand that has been forced back into the sand by high pressure rotary pumps used in rotary drilling.

This invention will be best understood from a consideration of the following detailed description, in view of the accompanying drawings forming a part of the specification; nevertheless, it is to be understood that the invention is not confined to the disclosure, being susceptible of such changes and modifications which shall define no material departure from the salient features of the invention as expressed in the appended claims.

In the drawings:

Figure 1 is a vertical section of the pump constructed in accordance with the principles of my invention,

Figure 2 is a fragmentary view in vertical section showing the pumpin operative position with the valve in the plunger body closed,

Figure 3 is an enlarged vertical section showing the pump in position with the valve in the plunger body maintained in open posi tion.

Figure 4 is a view in perspective of the friction slide employed iii connection with the pump,

Figure 5 is a view in perspective of a valve of the plunger body.

Referring more particularly to the drawings, 10 designates a drill stem or pipe connection which has a flange 11 adapted to engage the upper end of an outside tubular body 12 and having threaded oonnections at l?) with the drill Stem. A hollow plunger stein 14 has its upper end threaded internally of the pipe connection 10 and extends downwardly through the outer body member 12 and in crosc association with a tubular body 15 providing a support for the plunger stem 14 and also provides a connection for a nut 16 which maintains a packer 17 in position, the said packer embracing the member 15.

A nut 18 is threaded onto the external threads of the member 15 and acts as a stop and lift in connection with a shoe 19 which has threaded engagement with the hollow body member 12. The lower end of the shoe is expanded and provides a shoulder which engages the inner end of the body member 12. and is provided with means at its lower end, as shown at 20, to cut oil' the packer' 17 as will presently be described. The packer 17 while the pump is in operation serves to cut off the water and mud from the upper regions of the hole and prevents the water and mud from entering the oil sand when the same is being removed.

A second packer nut 21 is threaded onto the end of the tubular body 15 and has a shoulder at 22 adapted to engage the upper outer end of a packing body or casing 23 and is threaded onto the nut 21 whereby said packing body is supported. The body 23 has a recess to receive a packing 24 which is in close contact with the outer surface of the plunger stem 14. rlhe lower end of the packing body is reduced and threaded to receive the internal threads at the upper end of the lower tubular casing 25. This shell or casing forms a lower stationary part of the pump.

The plunger 26 is threaded on the inner end of the stein 14 and is adapted to be unscrewed as will be presently described. A valve 28 engaging a seat- 29 is located inthe plunger 26 and is adapted to be opened or closed for controlling the flow of the Huid through the pump.

The valve 28 as shown more particularly in Fig. has a circular port-ion 30, a conical portion 3l and. a stein 32. Upon the circular portion are three varies 33, 34 and 35 which have their outer edges 36 in engagement with the inner wall of the plunger 26 whereby the circular member 30 is spaced from said walls to permit the passage of fluid from the lower portion of the pump to the upper portion.

A friction slide 37 is provided with lugs 38 adapted to be forced outwardly by means of springs 39 to engage the notches 40 in the inner wall of the plunger 26. Lugs 38 are loeated in a diametrieally disped rib 42 formed ii'itegg'rallywith a circular body member lil. Upon opposite sides ot the rib and between the eli-cular body are provided passages `for fluid. A packing;l All; is loc'aA fd within the body men'iber and seated within a recess in the lower end ot the plunger 26. A plunger packing nut f5 operates to m ntain the packing; llt in position and is screwed onto the lower end ot the plunger and also aids in mainlainiiur in position the member ll-(S which bas passanI 4:7 to permit the transiter ot fluid at this point. This nut has a .square opening; et@ which receives the :alre adjusting member if) uo that when the nut lll is rotated the number ill will be revolved, and since this member has threaded engarementt as shown at 5l), with a nut 51 the meml lll will be el walled or lowered7 depem fr. upon the dA etion oi rotation. The nut Ltil hau an annular flange 52 reeeifed within a sozlf-et between the lower en-il of the plur-" and the nut. l5 whereby the uut i6 may be rotated and maintained in place.

The lower end ol the adjusting member if has a siem 52 extending` ooifnwardly in the body E25 and ,is threaded to receive a knob 53.

il valve easing); 5st is threaded into the body member 25 and partially closed at its upprr end by the nut 5l, said uut beinp; pro- 4vided with passages .,)5 to permit the transfer of fluid, The valve body is provided with a seat 56 adapted to be engaged by the valve 5T which .is ,guided on the stem 52 through a sleeve 5S, said sleeve being: slidably mounted in a seeond nut whiehlihmvise has a plurality oi passages V60 to permit the transter of fluid. At times the lower end ot the sleeve 5S is adapted to rest upon the knob or nut 523.

A packing (3l is adapted to be employed on a. lower pump body (32 when the hole is shallow; otherwise, the paolinas l'T and (il are employed in eonjuiietiou when it is iumessary to insert the pump into a deeper well. A nut Gil is screwed onto the body (i2 for n1aintaining the body (3 1 in position. The body G2, as shown at i-it, is screwed into the valve body Viel, and eU-OJerates with a shoulder G7 on the valve body and the upper end oit the tubular easing 62 for maintaining the mit 59 in place. The tubular member (l2 is threaded at its lower end for connecting; the perforated nip-4 ple which is 'usually employed and through 'whieh the oil adapted to flow to reaeh the inside of the pump.

The operation of my device is as follows: The Valve adjusting member 4:9 is tijrhtened against the valve 57 and this maintains said valve on its seat 5B yto exclude mud and water from the pump and drill pi )awhile the pump beingr placed in .the hole. The machine or pump '1s connected to the drill stem ll0 and lowered into the well. If the reduced or Small hole in the well is .shallow then the lower packer G1 is set in the top of the hole;

otherwise, it said hole has sulfieient depth the paelrer (ll 'is omitted and the puel-:er 17 ia employed at the top ot the hole after the working; barrel has been placed in the hole. At this time the packer 17 being located above the working;l barrel. Cuts oil all mud and water 'from above.

The drill pipe il is then rotated towards the right and this dise nneets a member from the ijiunger 26 sinee the threaded eonneetions between these two members is of right hand type. The plunger is then loiei'eii in the '\\'orl:in l barrel to permit the wrench i6 to slip down over the adjusting stem and be received in the squared opening il in said .rreneh. lflien the drill pipe is imtated this causes rotation ot the member lil whieh is threiuled with a lett hand thread, the drill pipe beingr turned through tive or ations which causes the adjusting` l to be elevated sullieiently to un- '.lhe pump is now in oontor operation and the drill pipe i .l and lowered to aetuate the plunger Q6 in the working barrel and this operation continued sullieiently to obtain a goed test on the sand.

Atter the sand has been tested the plunger il is lowered to the bottom of the working barrel 25 until the wreneh el@ moves over the member t9 when the drill stem is turned to the right7 thereby Causing the member 49 which has a left hand thread to travel up- 1, 'ar'll the b i o shiner tl fri ,tioi sli l i7 n t 5 rie 51u.. 1e e i eet against the stem 82 of the Valve 28, forcing the 'friction slide out ot the notch and into notch 40, whereby the valve QS is forced from its seat and maintained in an elevated position. At the same time the knob or nut 53 on the lower end of the adjlistingr member 49 raises valve 5T from its seat 5G. This action opens both valves and maintains them open, allowing the fluid t-o pass out ot the drill stem as it is raised out of the hole.

At times when it is attempted to raise the drill pipe after the paelrer has been set in the sand, the packer will stick and resist the remoral of the drill pipe. In such a ease the dr'll pipe is lowered until the milling teeth Qt) on the member 1 9 engages the rubber packer t7 whence the drill stem is rotated, causing` the millingl teeth to out off the packer and rele; the pump. In this operation ot the milling teeth of the packen the wrench 6 oonlinues to turn, adjusting the member Li9 but does not Cha-nge the upward and downward motion of the member Li9 since it has reached its limit of upward movement in the nut 5l and at this time only idly rotates in said nut.

I claim:

l. In a sand tester pump, a shell, ae plunger in said shell adapted to be reeiprocated land provided with a taire seat, a valve ada ted vto engage the seat, and mean-s adapted to be rotated and force the valve and maintain said valve olf the seat.

2. In a sand tester pump, a shell, a plunger in said shell adapted to be reciprocated and provided With a valve seat, a valve adapted to engage the seat and means adapted to be rotated and force the valve and maintain said valve off the Seat, a valve in the shell, and a seat in the shell adapted to be engaged by the second mentioned valve and located inwardly of the movable plunger.

3. In a sand tester pump, a shell, a plunger in said shell adapted to be reciprocated and provided with a valve seat, a valve adapted to engage the seat and means adapted to orcc the valve from and maintain said valve ofi' the seat, carried by the shell, and a valve in the shell, and a seat adapted to be engaged by the valve and located in advance ot' the movable plun er, the second mentioned valve being slida ly mounted on the means for controlling the position ofthe first mentioned valve.

4. In a sand tester pump, a shell, a plunger slidably mounted in the shell, an inner sleeve, said plunger having a threaded connection with the inner sleeve, whereby one direction of rotation of Said plunger will release the plunger from the sleeve, a valve for controlling the flow of fluid through the plunger, and a rotatably mounted stem adapted to be moved longitudinally of the shell for maintaining the valve in open position.

5. In a sand tester pump, a shell, a plunger slidably mounted in the shell, an inner sleeve, said plunger having a threaded connection with the inner sleeve, where-by one direction of rotation of said plunger will release the plunger from the sleeve, a valve for controlling the flow of fluid through the plunger, a rotatably mounted stem adapted to be moved longitudinally of the shell for maintaining the valve in open position, and a valve located in the shell in advance of the plunger and the lirst mentioned valve.

(i. In a sand tester pump, a shell, a. plunger slidably mounted in the shell, an inner sleeve, said plunger having a. threaded connection with the inner sleeve, whereby one direction of rotation of said plunger will release the plunger from the sleeve, a valve for controlling the flow of fluid through the plunger, a rotatably mounted stem adapted to be moved longitudinally of the shell for maintaining the valve in open position, and a. valve located in the shell in advance of the plunger and the first mentioned valve, said stem being located between the valves.

7. In a` sand tester pump, a shell, a plunger slidably mounted in the shell, an inner sleeve, said plunger having a threaded connection with the inner sleeve, whereby one direction of rotation of said plunger will release the plunger from the sleeve, a valve for controlling the flow of fluid through the plunger, a rotatably `mounted stem adapted to be moved longitudinally of the shell for maintaining the valve in open position, and a valve located in the shell in advance of the plunger and the lirst mentioned valve, said stem` being located between the valves, the second mentioned valve being slidably mounted on the eXtension of the stem.

GEORGE F. LE BUS. 

